The Effectiveness of Using Chard Media and Peer Tutors Through Direct Teaching Hydrobiology Online Lectures

This study aims to obtain empirical information about the effectiveness of using media charts and peer tutors in hydrobiology on-line lectures. The study used an experimental method with a randomized control-group pretest-posttest design. The students participating in the Hydrobiology course in the odd semester 2020/2021, with a total of 58 people, were divided into two classes, namely, class A and class B. Before the experiment, a pretest was conducted with the basic concepts of Hydrobiology to be taught. The results of the pretest scores were analyzed and the differences were interpreted using t-test statistics, and the results showed that there was no significant difference in the pretest scores between class A and B (significance value 0.359 = 0.05). The results showed that the use of chard media and peer tutoring through direct on-line lecture teaching (treatment group), was effectively used to improve learning achievement (N-gain) compared to classes that used group discussions (control group), with indicators: N The total gain in the treatment class was higher than the N-gain in the control group. The learning management is also explained